Home / 89,078.20-133,617.21-36,487.78

Finding the Fourth Proportional to 89,078.20, 133,617.21 and 36,487.78

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Solution

The fourth proportional to 89,078.20, 133,617.21 and 36,487.78 is: 54,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,078.20 : 133,617.21 = 36,487.78 : x
  2. Step 2: Convert to fraction form
    89,078.20/133,617.21 = 36,487.78/x
  3. Step 3: Cross multiply
    89,078.20x = 133,617.21 × 36,487.78
  4. Step 4: Simplify right side
    89,078.20x = 4,875,395,362.69
  5. Step 5: Solve for x
    x = 4,875,395,362.69/89,078.20
  6. Step 6: Final answer
    x = 54,731.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.